Board Paper of Class 10 2019 Maths Abroad(Set 2)  Solutions
General Instructions:
(i) All questions are compulsory.
(ii) The question paper consists of 30 questions divided into four sections – A, B, C and D.
(iii) Section A comprises 6 questions of 1 mark each. Section B contains 6 questions of 2 marks each. Section C contains 10 questions of 3 marks each. Section D contains 8 questions of 4 marks each.
(iv) There is no overall choice. However, an internal choice has been provided in two questions of 1 mark, two questions of 2 marks, four questions of 3 marks each and three questions of 4 marks each. You have to attempt only one of the alternative in all such questions.
(v) Use of calculators is not permitted.
 Question 1
For what values of k does the quadratic equation 4x^{2} − 12x − k = 0 have no real roots? VIEW SOLUTION
 Question 2
Find the distance between the points (a, b) and (−a, −b). VIEW SOLUTION
 Question 3
Find a rational number between $\sqrt{2}$ and $\sqrt{7}$.
OR
Write the number of zeroes in the end of a number whose prime factorization is 2^{2 }× 5^{3} × 3^{2} × 17. VIEW SOLUTION
 Question 4
Let ∆ ABC ∽ ∆ DEF and their areas be respectively, 64 cm^{2} and 121 cm^{2}. If EF = 15⋅4 cm, find BC. VIEW SOLUTION
 Question 5
Evaluate:$\frac{\mathrm{tan}65\xb0}{\mathrm{cot}25\xb0}$OR
Express (sin 67° + cos 75°) in terms of trigonometric ratios of the angle between 0° and 45°. VIEW SOLUTION
 Question 6
Find the number of terms in the A.P. : $18,15\frac{1}{2},13,...,47.$ VIEW SOLUTION

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